import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'

Vue.use(VueRouter)
const router = new VueRouter({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/home',
      component: Home,
      redirect: '/welcome', // 访问home时重定向到welcome
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users }
      ]
    }
  ]
})
// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  if (to.path === '/login') next()// 放行
  else {
    const tokenStr = sessionStorage.getItem('token')
    if (!tokenStr) next('/login') // 强制放行
    next()
  }
})

export default router
